Supports most laptops and docking stations up to 25lb. Adjusts from flat to a 30-degree angle for improved comfort and ergonomics Four viewing angles help prevent neck and shoulder strain Stabilizing front edge ensures your laptop stays securely in place without slipping off Cooling vents promote airflow to effectively disperse heat from your laptop Offers space for USB hub Sliding feet allow easy movement of the unit while protecting surfaces from scratches Made with recycled polystyrene, rubber, and ABS for lasting usage